package com.yhg.qxmall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @author 凌月青缃
 * @date 2020/12/19
 */
@Configuration
public class QxFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate template) {
                //1、RequestContextHolder拿到刚进来的这个请求
                ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                System.out.println("RequestInterceptor线程……"+Thread.currentThread().getId());

                HttpServletRequest request = attributes.getRequest();//老请求
                if (request !=null){
                    //同步请求头数据
                    String cookie = request.getHeader("Cookie");
                    //给新请求同步了老请求的cookie
                    template.header("Cookie",cookie);
                }

            }
        };
    }
}
